A Warm Karl is when you take your fecial product (Shit) and put it in a cup. Then you piss in the cup to the top. Once you have filled the cup with your shit and piss, you fit the cup on your erected penis. Once your shit and piss has soaked into your pubes and penis, you remove the cup and insert your smelly penis into a wrinkley ladys bum. Then you rape her bum until she has her period on your face. Can also be used in masturbation.

Did you see Mike O'Brien Warm Karl his gandma? I heard that DOBer walked in on him. How wrong is that!!!